20208200

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1279}}^1$

素因数の和:1374

約数の個数: 48

約数和(自身を含む): 47616000

約数和(自身を除く): 27407800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1279, 1580, 1975, 2558, 3160, 3950, 5116, 6395, 7900, 10232, 12790, 15800, 25580, 31975, 51160, 63950, 101041, 127900, 202082, 255800, 404164, 505205, 808328, 1010410, 2020820, 2526025, 4041640, 5052050, 10104100, 20208200]

約数ペア:

[(1, 20208200), (2, 10104100), (4, 5052050), (5, 4041640), (8, 2526025), (10, 2020820), (20, 1010410), (25, 808328), (40, 505205), (50, 404164), (79, 255800), (100, 202082), (158, 127900), (200, 101041), (316, 63950), (395, 51160), (632, 31975), (790, 25580), (1279, 15800), (1580, 12790), (1975, 10232), (2558, 7900), (3160, 6395), (3950, 5116)]